Analysis
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max time kernel
151s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
05-12-2022 23:55
Static task
static1
Behavioral task
behavioral1
Sample
b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe
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Size
104KB
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MD5
f0249f17b408fb2534a92bb57f46cea7
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SHA1
b8d61dfe8c7172b6e43e776e9ffe65a245b40804
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SHA256
b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c
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SHA512
f93cd2dba4d5db2d45e5617c64183c7904c484d4b861e4795f8348f5a2ff858166a35205632695c02090a53ea4baeb06730de1cb391ca829e8bb90b5382c27a9
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SSDEEP
1536:Tc53fETlgZScK43sKeWjwJBAOs9G2HaQNsMj3i6E3j:453fEakIsK0IHxN/Oj
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tuuno.exe -
Executes dropped EXE 1 IoCs
pid Process 3796 tuuno.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /w" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /u" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /s" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /e" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /o" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /t" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /c" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /l" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /x" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /k" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /h" b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /q" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /h" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /d" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /a" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /b" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /n" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /i" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /f" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /z" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /r" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /g" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /m" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /j" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /y" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /v" tuuno.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tuuno = "C:\\Users\\Admin\\tuuno.exe /p" tuuno.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe 3796 tuuno.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 3796 tuuno.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4964 wrote to memory of 3796 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 84 PID 4964 wrote to memory of 3796 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 84 PID 4964 wrote to memory of 3796 4964 b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe"C:\Users\Admin\AppData\Local\Temp\b134b88cf0bf5e70ecf38fc79f79e57899cc4234915326a95722eed155c6318c.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Users\Admin\tuuno.exe"C:\Users\Admin\tuuno.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3796
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
104KB
MD5feee710fbcb085b32937dd83005e8b75
SHA14ad9478031dd5003c64eafba8785aa9fe2fdaf1d
SHA25673c12b32d7884af23de759123c93ef900e14de42b4da65914cdfade1474dbc99
SHA512aee013974153b93e26d08f8d135ba5cf849943d4db171deec1a07318a4b4984982834867a9b03cd38ac4c320506358efbc0c222e3713a9aa76dff5144c2fa12e
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Filesize
104KB
MD5feee710fbcb085b32937dd83005e8b75
SHA14ad9478031dd5003c64eafba8785aa9fe2fdaf1d
SHA25673c12b32d7884af23de759123c93ef900e14de42b4da65914cdfade1474dbc99
SHA512aee013974153b93e26d08f8d135ba5cf849943d4db171deec1a07318a4b4984982834867a9b03cd38ac4c320506358efbc0c222e3713a9aa76dff5144c2fa12e